"If they try it on Dallas, San Antonio, Houston, and even Austin; Texans will kick their ass."
Exactly how would they do that?
You're in a blue state.
Things won't be nice in the red states for islamics after another attack, especially if it's wmd.
There's probably lot 's of ways. But just shooting them while they try to deploy their "device" would seem the simplest. Texans have lots of ass kicking practice.